December 22, 2015: Clinton’s private server was once infected by a computer virus.

When Bryan Pagliano, who managed Clinton’s private server, is interviewed by the FBI on this day, he will mentioned that he recalled finding “a virus” on her server at some point. But according to the FBI, he “could provide no additional details, other than it was nothing of great concern. FBI examination of the [server] and available server backups did not reveal any indications of malware.” (Federal Bureau of Investigation, 9/2/2016)

December 22, 2015: Pagliano is secretly interviewed as part of an immunity deal with the FBI’s Clinton investigation.

Clinton’s former computer technician Bryan Pagliano makes a “derivative use” immunity deal with the Justice Department by this time, though it’s not clear exactly when this happens. Then he gives testimony to the FBI and the Justice Department as part of the FBI’s Clinton investigation. Apparently he speaks to investigators at least twice, though it is not known when the second interview takes place. “Derivative use” immunity wouldn’t prevent investigators from prosecuting Pagliano, but limits them from using any evidence derived from his testimony against him.

The media will first report on the immunity deal in March 2016, and more details will be made public in a court filing in June 2016. (LawNewz, 6/7/2016) (Federal Bureau of Investigation, 9/2/2016)